If they follow the Japanese school system which is likely then she is around 15 or 16.
Oh thank you xD
You're welcome! You know the age gap is kinda bugging me too lol. I first thought maybe he is around 18 or 20 which not great but okay, but damn then he said he was 143, I'm like hmm maybe this is about him being her mentor or a father figure since she doesn't seem to have one and let her go to high school and meet new people, and the real male lead. Like I can't imagine myself being 143 and still able to fall in love with someone who is 16, at the very least they need to not consider as kid anymore. It seem like it pretty common with a huge age gap in shoujo manga. Maybe that's Japanese thing, I used to like it when I was young but now I knew that those are grooming with is gross.
How old is the ml again? Lmao i bet after her family know her position they were be like
: Oh dats mah daugther! I should also had the so called privileged blah blah